Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NI9O callsign genealogy
Currently held by SCHULZ, JOSEPH J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by NI9O's current licensee, walking backwards.
- SCHULZ, JOSEPH JILgranted 2012-02-22cancelled 2013-07-16
Successor callsigns
Callsigns held now by people who previously held NI9O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NI9O, oldest first.
- JOWETT, ROBERT A OH2000-09-13 → cancelled 2012-09-14
- SCHULZ, JOSEPH J IL2023-04-21 active